<!DOCTYPE html>
<HTML>
<HEAD>
    <TITLE> ZTREE DEMO - addNodes / editName / removeNode / removeChildNodes</TITLE>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <link rel="stylesheet" href="../../../css/demo.css" type="text/css">
    <link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
    <script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
    <script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script>
    <script type="text/javascript" src="../../../js/jquery.ztree.excheck.js"></script>
    <script type="text/javascript" src="../../../js/jquery.ztree.exedit.js"></script>
    <SCRIPT type="text/javascript">
        <!--
        var setting = {
            view: {
                selectedMulti: false
            },
            edit: {
                enable: true,
                showRemoveBtn: false,
                showRenameBtn: false
            },
            data: {
                keep: {
                    parent: true,
                    leaf: true
                },
                simpleData: {
                    enable: true
                }
            },
            callback: {
                beforeDrag: beforeDrag,
                beforeRemove: beforeRemove,
                beforeRename: beforeRename,
                onRemove: onRemove
            }
        };

        var zNodes = [
            {id: 1, pId: 0, name: "父节点 1", open: true},
            {id: 11, pId: 1, name: "叶子节点 1-1"},
            {id: 12, pId: 1, name: "叶子节点 1-2"},
            {id: 13, pId: 1, name: "叶子节点 1-3"},
            {id: 2, pId: 0, name: "父节点 2", open: true},
            {id: 21, pId: 2, name: "叶子节点 2-1"},
            {id: 22, pId: 2, name: "叶子节点 2-2"},
            {id: 23, pId: 2, name: "叶子节点 2-3"},
            {id: 3, pId: 0, name: "父节点 3", open: true},
            {id: 31, pId: 3, name: "叶子节点 3-1"},
            {id: 32, pId: 3, name: "叶子节点 3-2"},
            {id: 33, pId: 3, name: "叶子节点 3-3"}
        ];
        var log, className = "dark";

        function beforeDrag(treeId, treeNodes) {
            return false;
        }

        function beforeRemove(treeId, treeNode) {
            className = (className === "dark" ? "" : "dark");
            showLog("[ " + getTime() + " beforeRemove ]&nbsp;&nbsp;&nbsp;&nbsp; " + treeNode.name);
            return confirm("确认删除 节点 -- " + treeNode.name + " 吗？");
        }

        function onRemove(e, treeId, treeNode) {
            showLog("[ " + getTime() + " onRemove ]&nbsp;&nbsp;&nbsp;&nbsp; " + treeNode.name);
        }

        function beforeRename(treeId, treeNode, newName) {
            if (newName.length == 0) {
                alert("节点名称不能为空.");
                var zTree = $.fn.zTree.getZTreeObj("treeDemo");
                setTimeout(function () {
                    zTree.editName(treeNode)
                }, 10);
                return false;
            }
            return true;
        }

        function showLog(str) {
            if (!log) log = $("#log");
            log.append("<li class='" + className + "'>" + str + "</li>");
            if (log.children("li").length > 8) {
                log.get(0).removeChild(log.children("li")[0]);
            }
        }

        function getTime() {
            var now = new Date(),
                h = now.getHours(),
                m = now.getMinutes(),
                s = now.getSeconds(),
                ms = now.getMilliseconds();
            return (h + ":" + m + ":" + s + " " + ms);
        }

        var newCount = 1;

        function add(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                isParent = e.data.isParent,
                nodes = zTree.getSelectedNodes(),
                treeNode = nodes[0];
            if (treeNode) {
                treeNode = zTree.addNodes(treeNode, {
                    id: (100 + newCount),
                    pId: treeNode.id,
                    isParent: isParent,
                    name: "new node" + (newCount++)
                });
            } else {
                treeNode = zTree.addNodes(null, {
                    id: (100 + newCount),
                    pId: 0,
                    isParent: isParent,
                    name: "new node" + (newCount++)
                });
            }
            if (treeNode) {
                zTree.editName(treeNode[0]);
            } else {
                alert("叶子节点被锁定，无法增加子节点");
            }
        };

        function edit() {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                nodes = zTree.getSelectedNodes(),
                treeNode = nodes[0];
            if (nodes.length == 0) {
                alert("请先选择一个节点");
                return;
            }
            zTree.editName(treeNode);
        };

        function remove(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                nodes = zTree.getSelectedNodes(),
                treeNode = nodes[0];
            if (nodes.length == 0) {
                alert("请先选择一个节点");
                return;
            }
            var callbackFlag = $("#callbackTrigger").attr("checked");
            zTree.removeNode(treeNode, callbackFlag);
        };

        function clearChildren(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                nodes = zTree.getSelectedNodes(),
                treeNode = nodes[0];
            if (nodes.length == 0 || !nodes[0].isParent) {
                alert("请先选择一个父节点");
                return;
            }
            zTree.removeChildNodes(treeNode);
        };

        $(document).ready(function () {
            $.fn.zTree.init($("#treeDemo"), setting, zNodes);
            $("#addParent").bind("click", {isParent: true}, add);
            $("#addLeaf").bind("click", {isParent: false}, add);
            $("#edit").bind("click", edit);
            $("#remove").bind("click", remove);
            $("#clearChildren").bind("click", clearChildren);
        });
        //-->
    </SCRIPT>
</HEAD>

<BODY>
<h1>用 zTree 方法 增 / 删 / 改 节点</h1>
<h6>[ 文件路径: exedit/edit_fun.html ]</h6>
<div class="content_wrap">
    <div class="zTreeDemoBackground left">
        <ul id="treeDemo" class="ztree"></ul>
    </div>
    <div class="right">
        <ul class="info">
            <li class="title"><h2>1、addNodes / editName / removeNode / removeChildNodes 方法操作说明</h2>
                <ul class="list">
                    <li>利用 addNodes / editName / removeNode / removeChildNodes 方法也可以实现 增 / 删 / 改 节点的目的，这里简单演示使用方法</li>
                    <li>cancelEditName 方法仅仅是在节点进入名称编辑状态时有效，请在必要时使用，Demo 不进行此方法的演示</li>
                    <li class="highlight_red">利用 setting.data.keep.parent / leaf 属性 实现了父节点、叶子节点的状态锁定</li>
                    <li><p>对节点进行 增 / 删 / 改，试试看：<br/>
                        &nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" id="callbackTrigger" checked/> removeNode 方法是否触发
                        callback<br/>
                        &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="addParent" href="#" title="增加父节点"
                                                     onclick="return false;">增加父节点</a> ]
                        &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="addLeaf" href="#" title="增加叶子节点"
                                                     onclick="return false;">增加叶子节点</a> ]
                        &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="edit" href="#" title="编辑名称" onclick="return false;">编辑名称</a>
                        ]<br/>
                        &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="remove" href="#" title="删除节点" onclick="return false;">删除节点</a>
                        ]
                        &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="clearChildren" href="#" title="清空子节点" onclick="return false;">清空子节点</a>
                        ]<br/>
                        remove log:<br/>
                        <ul id="log" class="log"></ul>
                        </p>
                    </li>
                    <li class="highlight_red">使用 zTreeObj.addNodes / cancelEditName / editName / removeNode /
                        removeChildNodes 方法，详细请参见 API 文档中的相关内容
                    </li>
                </ul>
            </li>
            <li class="title"><h2>2、setting 配置信息说明</h2>
                <ul class="list">
                    <li>同 "基本 增 / 删 / 改 节点"</li>
                    <li class="highlight_red">保持 父 / 叶子 节点状态，需要设置 setting.data.keep.parent / leaf 属性，详细请参见 API
                        文档中的相关内容
                    </li>
                </ul>
            </li>
            <li class="title"><h2>3、treeNode 节点数据说明</h2>
                <ul class="list">
                    <li>同 "基本 增 / 删 / 改 节点"</li>
                </ul>
            </li>
        </ul>
    </div>
</div>
</BODY>
</HTML>